Step
Action
2
Select menu
Check Analog Out, press OK.
3
Start the test, press
OK. The test will ramp the channel up to 1 V and then
decrease the signal in 10% steps back to 0 V. The test is run continuously.
Compare the diagram of the chart recorder with the image below.
1 V
0 V
4
Stop the test by pressing
Esc.
Light intensity
This menu shows the voltages generated at the light detectors. These voltages are
proportional to the light intensities in each channel. The R-value gives an indication of
the condition of the lamp, filter and optical fibers.
Follow the steps below to check the voltages generated at the light detectors.
Step
Action
1
Select menu
Check, press OK.
2
Select menu
Light Intensity.
If the R-value is < 750 mV, check filter used time. Change filter if the used
time is > 2500 hours. If the R-value still is < 750 mV after replacing filter,
contact Cytiva.
5 Operation
5.9 Check menu
58
Monitor UVis-920 Operating Instructions 29055049 AF
